Effects of biogas residue on yield and quality of tea

To study the fertilizing effect of the biogas residue on the yield and quality of tea,the quality indices and yield data was collected.The results showed that at same levels of organic nitrogen,application of the biogas residue could significantly increase the bud density,the weight of 100 tea buds and the shoots as well as the yield of fresh tea leaves.Furthermore,it also improved the quality of the fresh leaves and met the requirement of being pollution-free.